Sleep
April 28, 2017
Musawer Iqbal, Alireza Yarahmadi, F. Ashraf et al.
1 citation
Parasomnias are defined as undesirable physical events or experiences that occur during entry to sleep, within sleep, or during arousals from sleep. The non REM (NREM) parasomnias include confusional arousals, sleepwalking, and sleep terrors. In children, NREM parasomnias occur out of stage N3 (first part of the night) but in adults can occur out of stages N1 or N2 during any part of the night....
Sleep
April 28, 2017
Cristina Banu, Pierre McDuff, Antonio Zadra
1 citation
The present study tested a prediction from Levin and Nielsen’s (2007) neurocognitive model of disturbed dreaming stipulating that variations in the frequency of bad dreams and nightmares are partly determined by day-to-day variations in emotional stress. The model also suggests that relations between dreams and stress may vary as a function of personality traits. 224 adults (186F, 38M, mean...
Sleep
April 28, 2017
JC Scott, GC Harb, JA Brownlow et al.
Imagery rehearsal therapy (IR) is arguably the most effective form of cognitive-behavioral therapy (CBT) for the prominent nightmare disturbance in PTSD. CBT for insomnia (CBT-I) may also have efficacy for treating this problem. Although PTSD is associated with cognitive deficits in attention, executive control, and retrospective memory, functions likely essential to CBT outcome, no study has...
Sleep
2016
Bryony Sheaves, Kate Porcheret, Athanasios Tsanas et al.
Study objectives: To group participants according to markers of risk for severe mental illness based on subsyndromal symptoms reported in early adulthood and evaluate attributes of sleep across these risk categories. Methods: An online survey of sleep and psychiatric symptomatology (The Oxford Sleep Survey) was administered to students at one United Kingdom university. 1403 students...
Sleep
April 30, 2015
Michael Rak, P. Beitinger, Axel Steiger et al.
56 citations
STUDY OBJECTIVE: Nightmares are a frequent symptom in narcolepsy. Lucid dreaming, i.e., the phenomenon of becoming aware of the dreaming state during dreaming, has been demonstrated to be of therapeutic value for recurrent nightmares. Data on lucid dreaming in narcolepsy patients, however, is sparse. The aim of this study was to evaluate the frequency of recalled dreams (DF), nightmares (NF),...
Sleep
February 27, 2015
Pauline Dodet, Mario Chávez, Smaranda Leu-Semenescu et al.
115 citations
OBJECTIVE: To evaluate the frequency, determinants and sleep characteristics of lucid dreaming in narcolepsy. SETTINGS: University hospital sleep disorder unit. DESIGN: Case-control study. PARTICIPANTS: Consecutive patients with narcolepsy and healthy controls. METHODS: Participants were interviewed regarding the frequency and determinants of lucid dreaming. Twelve narcolepsy patients and 5...
Sleep
February 1, 2015
Paolo Mariotti, Davide Quaranta, Raffaella Di Giacopo et al.
Study objectives: REM sleep behavior disorder (RBD) is a parasomnia characterized by motor activity during sleep with dream mentation. Aggressiveness has been considered a peculiar feature of dreams associated with RBD, despite normal score in aggressiveness scales during wakefulness. We aimed to measure daytime aggressiveness and analyze dream contents in a population of patients with...
Sleep
August 29, 2014
Jason C Ong, Rachel Manber, Zindel V. Segal et al.
338 citations
STUDY OBJECTIVES: To evaluate the efficacy of mindfulness meditation for the treatment of chronic insomnia. DESIGN: Three-arm, single-site, randomized controlled trial. SETTING: Academic medical center. PARTICIPANTS: Fifty-four adults with chronic insomnia. INTERVENTIONS: Participants were randomized to either mindfulness-based stress reduction (MBSR), mindfulness-based therapy for insomnia...
Sleep
March 1, 2014
Helen L. Fisher, Suzet Tanya Lereya, Andrew Thompson et al.
Study objectives: To examine associations between specific parasomnias and psychotic experiences in childhood. Design: Birth cohort study. Information on the presence of frequent nightmares in children was obtained prospectively from mothers during multiple assessments conducted when children were aged between 2.5 and 9 y. Children were interviewed at age 12 y about nightmares, night terrors,...
Sleep
February 1, 2014
Geneviève Robert, Antonio Zadra
Study objectives: To conduct a comprehensive and comparative study of prospectively collected bad dream and nightmare reports using a broad range of dream content variables. Design: Correlational and descriptive. Setting: Participants' homes. Participants: Three hundred thirty-one adult volunteers (55 men, 275 women, 1 not specified; mean age = 32.4 ± 14.8 y). Interventions: N/A. Measurement...
Sleep
February 1, 2014
Erin J. Wamsley, Claire E H M Donjacour, Thomas E Scammell et al.
We investigated a generally unappreciated feature of the sleep disorder narcolepsy, in which patients mistake the memory of a dream for a real experience and form sustained delusions about significant events. We interviewed patients with narcolepsy and healthy controls to establish the prevalence of this complaint and identify its predictors. Academic medical centers in Boston, Massachusetts...
Sleep
December 1, 2013
Isabelle Godin, Jaques Montplaisir, Jean-François Gagnon et al.
Study objectives: Idiopathic REM sleep behavior disorder (iRBD) is characterized by atypical REM sleep motor activity, vivid dreams and nightmares, and dream-enacting behaviors that can result in injuries to the patient and bed partner. It is also a known predictor of Parkinson disease (PD). Alexithymia has been associated with disturbances in sleep and dreaming (e.g., nightmares) and is a...
Sleep
July 1, 2013
Nils Sandman, Katja Valli, Erkki Kronholm et al.
Study objectives: To investigate the prevalence of nightmares among the Finnish general adult population during 1972-2007 and the association between nightmare prevalence and symptoms of insomnia, depression, and anxiety in World War II veterans. Design: Eight independent cross-sectional population surveys of the National FINRISK Study conducted in Finland in 1972, 1977, 1982, 1987, 1992, 1997,...
Sleep
March 1, 2013
Péter Simor, Róbert Bódizs, Klára Horváth et al.
Study objectives: Nightmares are disturbing mental experiences during sleep that usually result in abrupt awakenings. Frequent nightmares are associated with poor subjective sleep quality, and recent polysomnographic data suggest that nightmare sufferers exhibit impaired sleep continuity during nonrapid eye movement (NREM) sleep. Because disrupted sleep might be related to abnormal arousal...
Sleep
February 1, 2013
Laura Mantoan, Sofia H Eriksson, Angus P Nisbet et al.
We report the case of a 43-year-old woman presenting with nocturnal episodes of pain and screaming during sleep starting at age 30. There was no childhood or family history of parasomnia. The events had gradually become more frequent over the years, occurring in the first half of the night within 2 h of sleep onset. There were no triggers, and she had partial amnesia for the events. A diagnosis...
Sleep
June 29, 2012
Martin Dresler, Renate Wehrle, Victor I. Spoormaker et al.
271 citations
STUDY OBJECTIVES: To investigate the neural correlates of lucid dreaming. DESIGN: Parallel EEG/fMRI recordings of night sleep. SETTING: Sleep laboratory and fMRI facilities. PARTICIPANTS: Four experienced lucid dreamers. INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: Out of 4 participants, one subject had 2 episodes of verified lucid REM sleep of sufficient length to be analyzed by fMRI. During...
Sleep
April 1, 2011
Tore Nielsen
55 citations
The author has indicated no financial conflicts of interest. Rosalind Cartwright, Professor Emeritus of Rush University Medical Center's Graduate College Neuroscience Division and founder of the first accredited Sleep Disorders and Research Center in the State of Illinois, recently published her fourth book on the topic of sleep and dreaming. She has previously written A Primer on Sleep and...
Sleep
April 1, 2011
Shirley Xin Li, Mandy Wai Man Yu, Siu Ping Lam et al.
Study objectives: To conduct a systematic investigation on the prevalence, correlates, and familial aggregation of frequent nightmares in children, and to scrutinize the associations between frequent nightmares and parent-reported behavioral and mood problems in children. Design: A cross-sectional study was conducted by collecting the data on sociodemographic, sleep, behavioral, and...
Sleep
2011
Michael R Nadorff, Sarra Nazem, Amy Fiske
287 citations
STUDY OBJECTIVES: The purpose of this study was to investigate whether insomnia symptoms and nightmares are related to suicidal ideation independent of one another and independent of the symptoms of anxiety, depression, and posttraumatic stress disorder (PTSD). DESIGN: The study consisted of questionnaires examining insomnia symptoms and nightmares, and symptoms of depression, anxiety, and...
Sleep
June 1, 2010
Shirley Xin Li, Bin Zhang, Albert Martin Li et al.
186 citations
STUDY OBJECTIVES: To determine the prevalence of frequent nightmares and their correlates in a large community-based cohort of middle-aged Hong Kong Chinese. DESIGN: A 2-phase design involving a cross-sectional survey of 8558 subjects (men, 47.6%) with a mean age of 40.9 years (SD 5.5, range 20-78) and subsequently followed by a detailed clinical evaluation of the psychopathology and...
Sleep
2010
Sophie Schwartz
5 citations
WHAT GOES THROUGH OUR MINDS WHILE WE FALL ASLEEP? AT SLEEP ONSET, STUDENTS PREPARING FOR EXAMS COMMONLY RE-EXPERIENCE SOME OF the material they have been revising during the day; lovers have pervasive thoughts about their romantic partner; software developers may see bits of programming codes unfold in their mind's eye. These anecdotal observations suggest that, during the transition from...
Sleep
2010
Tore Nielsen, Tyna Paquette, Elizaveta Solomonova et al.
Study objectives: To assess whether dysfunctional autonomic regulation during REM sleep as indexed by heart rate variability (HRV) is a pathophysiological factor in frequent nightmares (NMs). Design: Monitoring with polysomnography (PSG) and electrocardiography (ECG) for 3 consecutive nights: Night 1 (N1), adaptation night; N2, administration of partial REM sleep deprivation; N3, recovery...
Sleep
2010
Erin J. Wamsley, Karen Perry, Ina Djonlagic et al.
Studies of neural activity in animals and humans suggest that experiences are "replayed" in cortical and hippocampal networks during NREM sleep. Here, we examine whether memory reactivation in sleeping humans might also be evident within reports of concomitant subjective experience (i.e., dreaming). Participants were trained on an engaging visuomotor learning task across a period of one or more...
Sleep
December 1, 2009
Tore Nielsen, Connie Svob, Don Kuiken
Determine the prevalence and gender distributions of behaviors enacted during dreaming ("dream-enacting [DE] behaviors") in a normal population; the independence of such behaviors from other parasomnias; and the influence of different question wordings, socially desirable responding and personality on prevalence. 3-group questionnaire study. University classrooms Three undergraduate samples (Ns...
Sleep
November 2009
Surilla Randall, Chris‐ellyn Johanson, Manuel E. Tancer et al.
3,4-Methylenedioxymethamphetamine (MDMA) affects monoamine neurotransmitters that play a critical role in sleep and daytime alertness. However, the acute effects of MDMA on sleep and daytime sleepiness have not been studied under placebo-controlled conditions. This study was designed to establish the effects of acute MDMA or placebo administration and sleep restriction on sleep and daytime...